Silvers Rayleigh

The Roger Pirates' first mate, the 'Dark King' who trained Luffy.

Silvers Rayleigh is a swordsman in One Piece who served as first mate of the Roger Pirates, known as the "Dark King" and regarded as Gol D. Roger's right-hand man.

Quick Facts

Crew: Roger Pirates (first mate)
Epithet: Dark King

Facts from the source article.

Background

He met Roger when both were young and joined his crew, honing his swordsmanship as its first mate. After Roger's death he retired to the Sabaody Archipelago, where he works as a ship coater and gambles. When the Straw Hats arrive he reveals who he is, coats their ship and becomes an important ally. After the war between the Whitebeard Pirates and the World Government, he spends two years training Luffy in Haki. He is one of the few men the Kuja Tribe respects, having married their former empress, Shakuyaku.